This cable can be used to cascade hubs, or for connecting two
Ethernet stations back-to-back without a hub. It works with
10Base-T, 100Base-TX, 100Base-T4 and 1000Base-T. Use a good enough cable, if
you are confused about categories of cables then use category 5e(nhanced) and
you'll be fine even at 1000Base-T.

Note 1: It's important that each pair is kept as a pair. TX+
TX- must be in the pair, and RX+ RX- must
together in another pair. (Just as the table above shows).

Note 2: While 10Base-T and 100Base-TX only uses 2 pairs, please connect all
four since 100Base-T4 and 1000Base-T needs them and save yourself some
future debugging :)

Note 3: The colors originate from the numbering and name on NIC1.

Note 4: The pinout of this cable differs from what people usually calls a
crossover cable since all pairs are swapped. If you need a
crossover cable for use with special applications like serial cables you
should not cross the pairs 4/5 and 7/8.